2.7
OMP400 basics
OMP400 specification
Principal application Small to medium machining centres and mould and die applications
Dimensions Length
Diameter
50 mm (1.97 in)
40 mm (1.57 in)
Weight (without shank) With batteries
Without batteries
262 g (9.24 oz)
242 g (8.53 oz)
Transmission type 360° infra-red optical transmission
Switch-on methods Machine M code or Auto-start
Switch-off methods Machine M code or timer
Operating range Up to 5 m (16.4 ft)
Receiver/interface OMI-2T, OMI-2, OMI-2H, OMI-2C, OMI or OMM / MI 12
Sense directions Omni-directional ±X, ±Y, +Z
Repeatability 0.25 µm (10 µin) 2 sigma – 50 mm stylus length*
0.35 µm (14 µin) 2 sigma – 100 mm stylus length
X, Y (2D) form
measurement deviation
±0.25 µm (10 µin) – 50 mm stylus length*
±0.25 µm (10 µin) – 100 mm stylus length
X, Y, Z (3D) form
measurement deviation
±1.00 µm (40 µin) – 50 mm stylus length*
±1.75 µm (70 µin) – 100 mm stylus length
Stylus trigger force
XY plane
+ Z direction
0.06 N, 6 gf (0.22 ozf) typical minimum
2.55 N, 260 gf (9.17 ozf) typical minimum
The stylus trigger force is the
force exerted on the component
when the probe triggers. However,
the maximum force applied to
the component will occur after
the trigger point and will be
greater than the trigger force. The
magnitude depends on a number
of factors affecting probe overtravel
including measuring speed and
machine deceleration. If the
forces applied to the component
are critical, contact Renishaw for
further information.
Stylus overtravel force
XY plane
+ Z direction
1.04 N, 106 gf (3.74 ozf) typical minimum §
5.5 N, 561 gf (19.78 ozf) typical minimum †
Stylus overtravel XY plane
+Z plane
±11°
6 mm (0.23 in)
* Performance specication is for a test velocity of 240 mm/min (9.45 in/min) with a 50 mm carbon bre stylus. Test velocity does not constrain performance in application.
§ Stylus overtravel force in XY plane occurs 70 µm after the trigger point and rises by 0.1 N/mm, 10 gf/mm (9.1 oz/in) until the machine tool stops (in the high force
direction and using a 50 mm carbon bre stylus).
† Stylus overtravel force in + Z direction occurs 10 µm to 11 µm after the trigger point and rises by 1.2 N/mm, 122 gf/mm (109.6 oz/in) until the machine tool stops.